Consistency of attribute data requires that all ultimate class frequencies must be: MCQ with Answer and Explanation
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Question #1
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If the events A and B are independent, P(A)=0.4, P(B)=0.5, then P(A'∩B') is:
Correct Answer: Option C
Explanation:
P(A')=0.6, P(B')=0.5, independence gives 0.6×0.5=0.3.
P(A')=0.6, P(B')=0.5, independence gives 0.6×0.5=0.3.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Standardized Death Rate (SDR) is expressed per:
Correct Answer: Option B
Explanation:
Like crude rates, SDR is typically expressed per 1,000 standard population to maintain consistency and readability, though the base can vary by convention (e.g., per 100,000 for rare events).
Like crude rates, SDR is typically expressed per 1,000 standard population to maintain consistency and readability, though the base can vary by convention (e.g., per 100,000 for rare events).
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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In a frequency distribution, the class width is 8, and the mid-value of a class is 42. The lower limit of that class is:
Correct Answer: Option D
Explanation:
Lower limit = mid-value - width/2 = 42 - 4 = 38.
Lower limit = mid-value - width/2 = 42 - 4 = 38.
This question belongs to:
Accountancy and Statistics
Statistics
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